In 2018 ALL NSF-BSF programs will have only a single round of submissions

Several NSF-BSF programs have two submission deadlines, including Oceanography and some programs in Geology. The first (winter) round of these programs is temporarily suspended, and Israelis who wish to submit collaborative proposals in any of these programs will be allowed to do so only in the second (summer) round. Americans without Israeli partners will continue to be able to submit in both rounds.This action is taken for budgetary reasons, and will hopefully be only a temporary measure.